fixing ub

rowers/tasks.py

@@ -30,6 +30,7 @@ import datetime
 import pytz
 import iso8601
 
+from json.decoder import JSONDecodeError
 
 from matplotlib.backends.backend_agg import FigureCanvas
 #from matplotlib.backends.backend_cairo import FigureCanvasCairo as FigureCanvas
@@ -2028,7 +2029,10 @@ def handle_makeplot(f1, f2, t, hrdata, plotnr, imagename,
     elif (plotnr == 2):
         fig1 = row.get_metersplot_erg(t,pacerange=oterange,**kwargs)
     elif (plotnr == 3):
-        t += ' - Heart Rate Distribution'
+        try:
+            t += ' - Heart Rate Distribution'
+        except TypeError:
+            t = 'Heart Rate Distribution'
         fig1 = row.get_piechart(t,**kwargs)
     elif (plotnr == 4):
         if haspower: